A researcher investigated the effect of volume of gackground noise on participants accuracy rates while performing a boring task he tested three groups of randomly selected students and obtained the following meands and sums of squares

Low volume Moderate volume High volume
mean 61.5 65.5 48.25
Sample size 4 5 7

State the hypothesis testing

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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add a picture or measurements so i cab

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